... HPSL and MHL. 2. High lighting effect, 90% light will be absorbed by plant, but to the tradition HPSL ... 4. Cooling system: Aluminum shell, pure aluminum frame and sink, quiet fan make up better cooling system, one day later ... culture, garden, sowing, breeding, farm, flower exhibition, bonsai, garden, green house, sowing,breeding, farm, greenhouse cultivation, water soluble breeding, greenhouse ...